Is there anywhere to join a group or club in person?

Is there a site or somewhere like meetup where you can join a group or club in person? I like meet up but it does not have any groups for my part of pennsylvania. I dont know if all of pennsylvania is like this. I wish I can meet people I like online. I want to start a group to make Marijuana not legal again. I have issues with family taking it i guess they have a medical card but anyone can get one of thoes. oh and I am not ok with alcohol being legal either.